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@@burnsm2012 thanks

Thanks

Think of lambda like x and do it like algebra back in the day. What two numbers multiply to 18 that add to negative 11. -9 times -2 is 18 and -9+-2=-11✅

👍🏽

Yeah the quadratic equation is what I fall back on if I can’t factor. I don’t use completing the square unless it’s for certain integrations or Laplace transforms.

Yes that’s what I would do too.

Same way we would just get a complex solution with “i”

​@@kobetutors oh , I'll try

Although in this particular case your method might be faster, but his method will work for any odd power of cosx or sinx and is more understable for newbies

@@khmzrun1 Newbies and substitutions?You sane dude?

@@khmzrun1 Also fyi, these substitutions doesnt work for negative powers and also cosx *sinx thingies, stuffs are more complicated here anyways.

@@psg7327im not familiar with many high school students who have a triple angle formula memorized

@@khmzrun1 erm aint no way💀 how tf they do trig then?

P/N is equal to 19-C after our first division. By moving C to the left side it becomes positive and by moving the P/N term to the right we get C = 19-P/N. Adding 19 on both sides doesn't get you any closer to the answer. Since we are trying to express C in terms of the other variables P and N.

Hayaaaaa No need to do all that Just do it this way P = N(19 - C) or P = 19N - NC or NC = 19N - P or C = (19N-P)/N or C = 19 - P/N No need to add or subtract 19 on both sides We indians solve questions like these in grade 6 or something and this was asked in SAT!?

That’s true! Thanks

Which jee exam, the advanced?

Good job

No problem thanks for watching!

I encourage you to try and seek value in math as it will take you very far in life if you become great at it. Good luck with high school.

@@kobetutors I'm still in middle school-- but will be there in less than a year! Thanks!

You have to take the negative reciprocal of the slope to get the slope of a line perpendicular.

Reciprocal just means to flip the fractions. That’s why he said negative reciprocal

Mb ion got sound

@@ZelephsDog were the captions wrong, I can go back and edit them if so

The reading comprehension section is usually what gets people. Perfect math is decently common but perfect reading section is not as common.

No problem

Definitely wouldn’t say the difficulty range in the SAT is huge but some questions have more to them for sure, I suggest browsing my channel for SAT videos with the key work tricky or hard.

What country do you live in

It was on the practice test provided by college board so I would say it’s comparable to something that would be on the SAT

Faster option: slope =8 answer is c.

That’s cool! How even is the education across the country? Would you say some kids have better opportunities than others depending on their location and their economic standing?

For sure u will get the answer after reviewing JEE ADVANCED, which the higher school students attempts🗿🗿

​@@kobetutorsno it is grade five question it's not about cross country

@@kobetutorsHere in Romania this is also sth you learn in grade 5 or earlier. I am shocked that students take SAT at 17-19 and this is on the exam. I chose maths and computer science for my last years of high school but even the easiest maths exam you take at around age 18 when u finish highschool has at least a quadratic equation. Before highschool around 13-14yo we take a standardised test to choose which high schools to go to and this sort of question might pop up there. Also, until 14yo the whole country studies roughly the same curriculum, after that u choose trades humanities or STEM. The next 4y basically prepare you for University.

@@andrada25m46 that sounds like a good system! Go 🇷🇴! Math and computer science is a great path. I wish you the best👍🏽

That can happen, with enough practice with these style questions you can quickly recognize patterns and identify the “easy way”

No

That’s awesome you had the chance to do this level of math so early on. What math do you do now? I’m currently studying partial differential equations.